Cs-6330 stripped gear

[gwalker]

Try this again - thread disappeared.

Hopefully someone has seen this issue before and can lead me in the right direction. Customer has a CS-6330 that was making grinding noises and leaving a bad area on output. When the MFP was examined, a gear in the develpoing section (part# 67322050 Gear 45 Developing Drive)was found with a few missing teeth. Once replaced, no further grinding, no output issue. A week later the customer called back, same issue, same gear. replaced gear, problem solved. It now has been 2 weeks and the problem has returned, same problem, same gear. Have looked the machine over and do not see anything that jumps out at me as the issue.
My knowledge on this machine is limited to the service manual (also only 6330 i am called on to look at) so any help would be appreciated.
Thanks

[10871087]

It is not uncommon to see this gear break, it sounds like you developing unit might be getting bound up, dump the developer and see if the DV unit turns by hand easily.

[Setright]

Look around the drive section for worn out bushings. The waste toner drive system on the KN-5530 a radial load that wore an oval hole into two bushings. This lead to a cog wheel losing teeth.

Your problem sounds similar.

[vikingmita]

if we're talking gear on rearside straight from driving motor it's pretty common since that gear drives 'almost' everything. dev unit hard to spin around and/or cleaning unit and/or fuser. change dev unit and cleaning unit and lower pressure on pressure roller in fuser. there is also a gear attached next to the fuser (who drive it), and that gear is placed on a surprisingly thin piece of metal that twist/buckle, and that can make the whole thing harder to drive.

if i don't remember wrong, even the duplex-unit is driven by this motor, so lube and clean all bushings there too. i'd guess your error code was 2500 og 2550.

[10871087]

if i don't remember wrong, even the duplex-unit is driven by this motor, so lube and clean all bushings there too. i'd guess your error code was 2500 og 2550.

That family of machines will strip that gear when bushings and shafts start to get dirty. Don't just spray-and-pray with a can of lube, spend 30-45 minutes and clean it right, it will save you in the long run.